3ME 4 A : MANUFACTURING PROCES SES (Common With Automobile Engg. 3AE4A) B.Tech. Mechanical 3 rd Semester 3L+0T Max. Marks: 100 Exam Hrs: 3 UNIT 1 General Classification and Introduction to Manufact uring processes. Foundry Technology: Casting: Definition and major classification; Casti ng materials, Sand mould casting: Patterns: types, material and design including pattern allowances. Moulding sands; composition, preparation, properties and tes ting; Grain fineness; moisture content, clay content and permeability test. Core & core prints; Gating system: types, pouring basin, sprue, runner and risers; Foundry equipment and furnaces. Melting, pouring and solidification. Principles and method of floor mould casting, shell mould casting, pit mould and loam mould casting; CO 2 mould casting; centrifugal casting, investment cas ting; Permanent mould casting. Die casting; Slush casting; Casting defects; types , causes and remedy UNIT 2 Forming Processes: Classification; Hot working and cold working; principle, advantages, disadvantages and applications. Forging: Classifica tion; work materials different forging operations, tools and equipment ; Smithy, drop forg ing and press forging methods and use; Forging dies; types, materials and design. Rolling: Characteristics and applications of hot rolling and cold rolling; Roll pass design. Extrusion; Work materials and products; Press tool works; Basic principles, system, operations and applicatio ns. Shearing; Parting, notching, trimming, nibbling, blanking and piercing, Drawing: wire draw ing, tube drawing and deep drawing. Design of blanks for any shearing and drawing operation. E stimation of forces and power required for shearing and drawing operations. Spinning, flow tur ning, Bulging, Coining and embossing; basic principle and methods. metal working defects, cold heading, riveting, thread rolling bending and forming operation. UNIT 3 Metal Joining Processes : Welding, Brazing and soldering, Adhesive bonding, Fusion welding: - Principle, characteristics and applications of gas welding, thermit welding, electrical arc welding; Submerged arc welding; TIG and MIG welding; Inducti on welding; Plasma arc welding; Resistance welding; Spot welding; Butt welding; Sea m welding; Projection welding. Laser beam welding and electron beam welding. Solid state welding process; Principles, process de tails of Forge welding; Friction welding; Diffusion welding; Ultrasonic welding. Pressure wel ding; Explosive welding. Welding defects; Types, causes, effects and remedy. Electrodes and E lectrode Coatings B.Tech Mechanical Engineering Syllabus Page 5 UNIT 4 Powder Metallurgy: Properties of Powder processed materials, Powder ma nufacturing, mechanical pulverization, sintering, Electrolytic P rocess, chemical reduction, atomization, properties of metal powders, compacting of powders sintering, advantages and applications of Powder metallurgy. Rapid Prototyping Operations: Introduction, subtractive processes, additive proce sses, Virtual Prototyping and applications UNIT 5 Plastic Technology: Classification of Plastics, Ingredients of Mouldin g compounds, General Properties of Plastics, Plastic part manufacturing processes such as compression moulding, transfer moulding, injection moulding, extrusion mo ulding, blow moulding, calendaring, thermoforming, slush moulding, laminating. Suggested Readings 1. Rao.P.N., Manufacturing Techn
Posted on: Thu, 24 Jul 2014 07:37:14 +0000
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